<!DOCTYPE html>
<html lang="zh">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no,maximum-scale=1.0">
    <title>Document</title>

    <link rel="stylesheet" href="./css/bootstrap.min.css" />
    <style>
        .testClass{
            height: 120px;
            border: 1px solid blue;
            text-align: center;
            line-height: 120px;
            font-size: 20px;
        }
    </style>
</head>
<body>

    <div class="container-bluid">
        <!-- <div class="row">
            <div class="testClass col-lg-3 col-sm-6 col-8">1</div>
            <div class="testClass col-lg-3 col-sm-6 col-4">2</div>
            <div class="testClass col-lg-3 col-sm-6 col-8">1</div>
            <div class="testClass col-lg-3 col-sm-6 col-4">2</div>
        </div> -->

        <!-- <div class="row">
            <div class="testClass col-lg-3 col-sm-5 col-7">1</div>
            <div class="testClass col-lg-3 col-sm-6 col-4 offset-1">2</div>
            <div class="testClass col-lg-2 col-sm-6 col-8">1</div>
            <div class="testClass col-lg-3 col-sm-6 col-4">2</div>
        </div> -->

        <div class="row">
            <div class="testClass col-7">1</div>
            <div class="testClass col-4 offset-1">2</div>
            <div class="testClass col-8">1</div>
            <div class="testClass col-4">2</div>
        </div>
    </div>

    <script src="./js/bootstrap.bundle.min.js"></script>
</body>
</html>